Messages in this thread | | | Date | Wed, 21 Sep 2005 11:56:10 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [PATCH] Keys: Add possessor permissions to keys |
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On Wed, 21 Sep 2005, Andrew Morton wrote: > > hrmph. Of course it's a reasonable trick from a performance and > convenience and resource consumption POV. But it's a new idiom and the > threshold for new idioms is non-zero. We use it in struct page, but struct > page is special.
Hmm.. I don't feel it is that new, but maybe that's because I've used that trick in other places. I think it's pretty common in a "type-safe C" way, and it should probably be encouraged. A unique pointer type for special usages, that you can't dereference even by mistake..
But adding a few comments might certainly be worth it. If only to teach others the trick.
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